<template>
  <div class='home-category' @mouseleave="categoryId=null">
    <ul class="menu">
      <li v-for="item in menuList" :key="item.id" @mouseenter="categoryId=item.id" :class="{ active: categoryId === item.id }">
        <RouterLink :to="`/category/${item.id}`">{{item.name}}</RouterLink>
        <template v-if="item.children">
        <RouterLink :to="`/category/sub/${i.id}`" v-for="i in item.children" :key="i.id">{{i.name}}</RouterLink>
        </template>
        <template v-else>
          <XtxSkeleton
            width="60px"
            height="18px"
            bg="rgba(255,255,255,0.2)"
            style="margin-right: 5px;"
          ></XtxSkeleton>
          <XtxSkeleton
            width="50px"
            height="18px"
            bg="rgba(255,255,255,0.2)"
          ></XtxSkeleton>
        </template>
      </li>
    </ul>
      <div class="layer">
      <h4>{{currentCategory?.goods? '分类':'品牌'}}推荐 <small>根据您的购买或浏览记录推荐</small></h4>
      <ul v-if="currentCategory?.goods">
        <li v-for="sub in currentCategory?.goods" :key="sub.id">
          <RouterLink to="/">
            <img
              :src="sub.picture"
              alt=""
            />
            <div class="info">
              <p class="name ellipsis-2">{{sub.name}}</p>
              <p class="desc ellipsis">{{sub.desc}}</p>
              <p class="price"><i>¥</i>{{sub.price}}</p>
            </div>
          </RouterLink>
        </li>
      </ul>
      <ul v-if="currentCategory?.brands">
        <li class="brand" v-for="j in currentCategory?.brands" :key="j.id">
          <RouterLink to="/">
            <img :src="j.picture" alt="">
            <div class="info">
              <p class="place"><i class="iconfont icon-dingwei"></i>北京</p>
              <p class="name ellipsis">{{j.name}}</p>
              <p class="desc ellipsis-2">{{j.desc}}</p>
            </div>
          </RouterLink>
        </li>
      </ul>
      </div>

    <!-- 弹层 -->

  </div>
</template>

<script>
import { computed, reactive, ref } from 'vue'
import { useStore } from 'vuex'
import { findBrand } from '@/api/home'
export default {
  name: 'HomeCategory',
  setup () {
    const store = useStore()
    const brand = reactive({
      id: 'brand',
      name: '品牌',
      children: [{ id: 'brand-chilren', name: '品牌推荐' }]
    })

    const menuList = computed(() => {
      const list = store.state.category.list.map(item => {
        return {
          id: item.id,
          name: item.name,
          children: item.children?.slice(0, 2),
          goods: item.goods
        }
      })
      list.push(brand)
      return list
    })
    const categoryId = ref('')
    const currentCategory = computed(() => {
      return menuList.value.find(item =>
        item.id === categoryId.value
      )
    })
    findBrand().then(res => {
      brand.brands = res.result
    })
    return {
      menuList,
      categoryId,
      currentCategory
    }
  }
}
</script>

<style scoped lang='less'>
.home-category {
  width: 250px;
  height: 500px;
  background: rgba(0,0,0,0.8);
  position: relative;
  z-index: 99;
  .menu {
    li {
      padding-left: 40px;
      height: 50px;
      line-height: 50px;
      &:hover,&.active {
        background: @xtxColor;
      }
      a {
        margin-right: 4px;
        color: #fff;
        &:first-child {
          font-size: 16px;
        }
      }
    }
  }
  .layer {
  width: 990px;
  height: 500px;
  background: rgba(255, 255, 255, 0.8);
  position: absolute;
  left: 250px;
  top: 0;
  display: none;
  padding: 0 15px;
  h4 {
    font-size: 20px;
    font-weight: normal;
    line-height: 80px;
    small {
      font-size: 16px;
      color: #666;
    }
  }
  ul {
    display: flex;
    flex-wrap: wrap;
    li {
      width: 310px;
      height: 120px;
      margin-right: 15px;
      margin-bottom: 15px;
      border: 1px solid #eee;
      border-radius: 4px;
      background: #fff;
      &:nth-child(3n) {
        margin-right: 0;
      }
      a {
        display: flex;
        width: 100%;
        height: 100%;
        align-items: center;
        padding: 10px;
        &:hover {
          background: #e3f9f4;
        }
        img {
          width: 95px;
          height: 95px;
        }
        .info {
          padding-left: 10px;
          line-height: 24px;
          width: 190px;
          .name {
            font-size: 16px;
            color: #666;
          }
          .desc {
            color: #999;
          }
          .price {
            font-size: 22px;
            color: @priceColor;
            i {
              font-size: 16px;
            }
          }
        }
      }
    }
  }
}
&:hover {
  .layer {
    display: block;
  }
}
}
</style>
